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Commitments And Contingent Liabilities - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Restructuring Cost and Reserve [Line Items] |  |  |
Operating lease agreements, expiring year | 2020 |  |
Rent expenses | $ 6,570 us-gaap_LeaseAndRentalExpense | $ 6,224 us-gaap_LeaseAndRentalExpense | $ 5,408 us-gaap_LeaseAndRentalExpense

X
- Definition Operating Leases Expiration Year + References No definition available. + Details
Name: | chkp_OperatingLeasesExpirationYear
Namespace Prefix: | chkp_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration